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Pitch on top of blade only

Started by Patrick NC, May 24, 2022, 06:59:31 PM

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Patrick NC

How come pitch only sticks to the top of the blade and the bottom is clean? Is it because sawdust gets compressed between the bandwheels and the blade, or is there another reason?
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Magicman

Yup, it gets smashed between the blade and bandwheels. 

I have never seen buildup on the bottom of a blade which led me to close the opening on the lower LubeMizer nozzle several years ago.
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terrifictimbersllc

Maybe sap gets squeezed out of the wood (sawdust) and spread out onto the blade. 
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Crossroads

My theory is the pitch flakes/peels off the outside as the band flexes. 
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KenMac

Maybe it's like a tire is only flat on the bottom?  
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